Standards*: H.4.3: Show how science has contributed to meeting personal needs, including hygiene, nutrition, exercise, safety, and health care.
D.4.6: Observe and describe physical events in objects at rest or in motion.
Objective: Students will develop an understanding of the safety reasons for the wearing of helmets in relation to the prevention of head injuries.
- 2 Brain Molds Plastic Safety Helmets
- Gelatin Plastic Bags
Activity: Prepare your favorite gelatin recipe as directed on box.
- Pour mixture into brain molds and let set.
- Place each “brain” into a plastic bag.
- Place one brain into a Safety Helmet and secure.
- From a height of approximately six to eight feet, drop the brain in the plastic bag only to the floor. Observe results.
- From a height of approximately six to eight feet, drop the brain in the plastic bag and helmet to the floor. Observe results.
- Compare and discuss results. Note that the helmet protected the brain more so than the no helmet at all. Do point out that while a helmet may not save you from injury, it may lessen the injury.
Assessment: Students to write/illustrate the results of activity and write a conclusion.
Variations: Raw eggs may be substituted for gelatin brains. Have students use various types of plastics to secure the egg in and repeat drop. (When using the raw egg, wrap the egg in a single row of packaging “peanuts”). Compare the levels of protection each type of plastic offered. Remind students to take in account the design and amount of materials used to create the protection.
*Wisconsin Model Academic Standards